123.51.165.0/24

AS9919 · New Century InfoComm Tech Co., Ltd.

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Summary

Country	Taiwan
Domain	seed.net.tw
ASN	AS9919
Parent Range	123.51.164.0/22
Registry	TWNIC
ID	NCICNET-NET

WHOIS Details

inetnum:        123.51.164.0 - 123.51.167.255
netname:        NCICNET-NET
descr:
descr:          No.218,Rueiguang Rd.,
descr:          Taipei Taiwan
country:        TW
admin-c:        IO1-TW
tech-c:         IO1-TW
mnt-by:         MAINT-TW-TWNIC
changed:        antispam@seed.net.tw 20151113
status:         ASSIGNED NON-PORTABLE
remarks:        This information has been partially mirrored by APNIC from
remarks:        TWNIC. To obtain more specific information, please use the
remarks:        TWNIC whois server at whois.twnic.net.
source:         TWNIC


person:         Anti-Spammer NCIC
address:        New Century InfoComm Tech Co., Ltd
address:        No.218, Rueiguang Road,Nei-Hu, Taipei City
address:        TW Taiwan
country:        TW
phone:          +886-2-7700-8888
fax-no:         +886-2-7700-8888
e-mail:         antispam@seed.net.tw
nic-hdl:        IO1-TW
changed:        hostmaster@twnic.net 20170320
remarks:        This information has been partially mirrored by APNIC from
remarks:        TWNIC. To obtain more specific information, please use the
remarks:        TWNIC whois server at whois.twnic.net.
source:         TWNIC

Overlapping Ranges

BGP prefixes that contain 123.51.165.0/24

Range	ASN	Company	Num of IPs
123.51.164.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.128.0/17	AS4780	New Century InfoComm Tech. Co., Ltd.	32,768
123.51.128.0/17	AS9919	New Century InfoComm Tech. Co., Ltd.	32,768

Nearby Ranges

BGP prefixes that overlap with 123.51.0.0/16

Range	ASN	Company	Num of IPs
123.51.0.0/17	AS38333	Telcoinabox Operations Pty Ltd	32,768
123.51.128.0/17	AS9919	New Century InfoComm Tech. Co., Ltd.	32,768
123.51.128.0/17	AS4780	New Century InfoComm Tech. Co., Ltd.	32,768
123.51.220.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.220.0/22	AS4780	No.218,Rueiguang Rd.,	1,024
123.51.132.0/22	AS4780	9F,No.468,Rueiguang Rd.,	1,024
123.51.132.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.160.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.172.0/22	AS4780	9F,No.468,Rueiguang Rd.,	1,024
123.51.168.0/22	AS4780	No.218,Rueiguang Rd.,	1,024
123.51.128.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.164.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.172.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.168.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.160.0/22	AS4780	9F,No.468,Rueiguang Rd.,	1,024
123.51.196.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.194.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.195.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.198.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.208.0/24	AS9919	2F.,No.6,Aly.30,Ln.210,WendeRd.,NeihuDist.,TaipeiCity114,Taiwan(R.O.C.)	256
123.51.188.0/24	AS9919	N/A	256
123.51.193.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.197.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.199.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.0.0/24	AS38333	Level 6, 9-13 Young Street	256

Hosted domains

There are 5 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
123.51.165.220	renew3d.org	3
123.51.165.217	divinecf.org.tw	2

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

32 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
123.51.165.217	AS9919 New Century InfoComm Tech Co., Ltd.	`1.05ms` from Taipei, TW

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
8.22.166.152	AS21754 Markel Corporation	`3.84ms` from Ashburn, US
61.51.76.200	AS4808 China Unicom Beijing Province Network	`3.26ms` from Beijing, CN
103.126.239.200	AS137638 Ace Designers Ltd	`5.41ms` from Bengaluru, IN
41.141.22.104	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`8.54ms` from Casablanca, MA
98.176.119.200	AS22773 Cox Communications Inc.	`6.47ms` from Los Angeles, US
219.107.76.56	AS2518 BIGLOBE Inc.	`2.62ms` from Osaka, JP
185.205.165.88	AS41160 Amt Services srl	`12.11ms` from Rome, IT
157.245.167.184	AS14061 DigitalOcean, LLC	`0.29ms` from San Jose, US
187.135.21.40	AS8151 UNINET	`10.75ms` from Santiago de Queretaro, MX
182.172.104.40	AS10036 DLIVE	`1.80ms` from Seoul, KR
117.144.237.40	AS9808 China Mobile Communications Group Co., Ltd.	`4.22ms` from Shanghai, CN
217.71.247.8	AS8758 Iway AG	`2.98ms` from Zuerich, CH
114.246.30.8	AS4808 China Unicom Beijing Province Network	`3.67ms` from Beijing, CN
57.129.104.88	AS16276 OVH SAS	`0.15ms` from Frankfurt am Main, DE
84.182.72.40	AS3320 Deutsche Telekom AG	`3.47ms` from Frankfurt am Main, DE
161.156.104.152	AS36351 IBM Cloud	`0.67ms` from Frankfurt am Main, DE
113.104.82.24	AS4134 CHINANET BACKBONE	`2.13ms` from Guangzhou, CN
175.116.184.88	AS9318 SK Broadband Co Ltd	`1.21ms` from Incheon, KR
61.166.246.40	AS4134 CHINANET BACKBONE	`0.43ms` from Kunming, CN
155.190.7.56	AS36692 Cisco OpenDNS, LLC	`0.24ms` from Minneapolis, US
48.221.204.120	AS8075 Microsoft Corporation	`0.20ms` from San Antonio, US
1.94.56.232	AS55990 Huawei Cloud Service data center	`2.70ms` from Suzhou, CN
60.242.115.56	AS7545 TPG Telecom Limited	`1.11ms` from Sydney, AU
126.4.3.40	AS17676 SoftBank Corp.	`7.41ms` from Tokyo, JP
61.21.61.120	AS9824 JCOM Co., Ltd.	`5.70ms` from Tokyo, JP

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f4 123.51.165.254

traceroute to 123.51.165.254 (123.51.165.254): 64 hops max, 52 byte packets

4 [AS4780] 139.175.58.96 0.536 ms

5 [AS4780] 139.175.59.164 1.111 ms

6 [AS4780] 139.175.57.218 1.883 ms

7 [AS4780] 192.72.107.98 2.002 ms

8 [AS9919] 220.228.23.6 1.583 ms

9 [AS9919] 123.51.165.254 2.219 ms

Measurement taken from

IPinfo ProbeNet in Taipei, TW

On April 24th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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